Millie Bobby Brown as Eleven
Winona Ryder as Joyce Byers
David Harbour as Jim Hopper
Finn Wolfhard as Mike Wheeler
Gaten Matarazzo as Dustin Henderson
Caleb McLaughlin as Lucas Sinclair
Noah Schnapp as Will Byers
Natalia Dyer as Nancy Wheeler
Charlie Heaton as Jonathan Byers
Joe Keery as Steve Harrington
Sadie Sink as Max Mayfield
Priah Ferguson as Erica Sinclair
Maya Hawke as Robin
Brett Gelman as Murray Bauman
Eduardo Franco as Argyle
Joseph Quinn as Eddie Munson
Cara Buono as Karen Wheeler
Dacre Montgomery as Billy Hargrove
Sean Astin as Bob Newby
Matthew Modine as Martin Brenner